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run code in 150+ php & hhvm versions
Bugs & Features
<?php /** * sort() triggers type-conversion notice * @link https://bugs.php.net/bug.php?id=64580 */ error_reporting(~0); function obj($prop) { // return array($prop); global $objects; isset($objects) || $objects = 0; $objects++; return (object) array('prop' => $prop); } function tostring($val) { if (is_object($val)) { $val = sprintf('obj(%s)', $val->prop); } if (is_array($val)) { $val = '[' . implode(',', $val) . ']'; } return $val; } function handler() { global $errors; isset($errors) || $errors = 0; $errors++; return FALSE; } $subject = array(3, 3, 2, 3, 3, 2, 2, 3, 3, 1, 1, obj(1), 1, obj(1.2), 2, obj(2), 2, 2, 2, 2, obj(2.1), 1, 0, 0); set_error_handler('handler'); sort($subject); set_error_handler(FALSE); printf("sort caused %d error(s) in an array of %d member(s) of which %d are object(s).\n", $errors, count($subject), $objects); echo 'sort()-result: ', implode(', ', array_map('tostring', $subject));
Output for 7.0.0 - 7.1.0
Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Warning: set_error_handler() expects the argument () to be a valid callback in /in/KUjGR on line 38 sort caused 10 error(s) in an array of 24 member(s) of which 4 are object(s). sort()-result: 0, 0, 1, 1, obj(1), obj(1.2), obj(2), obj(2.1), 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3
Output for hhvm-3.12.0
Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line -1 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line -1 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line -1 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line -1 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line -1 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line -1 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line -1 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line -1 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line -1 sort caused 9 error(s) in an array of 24 member(s) of which 4 are object(s). sort()-result: 0, 0, 1, 1, obj(1), obj(1.2), obj(2), obj(2.1), 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3
Output for hhvm-3.10.0
Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 sort caused 9 error(s) in an array of 24 member(s) of which 4 are object(s). sort()-result: 0, 0, 1, 1, obj(1), obj(1.2), obj(2), obj(2.1), 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3
Output for 5.1.0 - 5.6.28
Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Notice: Object of class stdClass could not be converted to int in /in/KUjGR on line 37 Warning: set_error_handler() expects the argument () to be a valid callback in /in/KUjGR on line 38 sort caused 44 error(s) in an array of 24 member(s) of which 4 are object(s). sort()-result: 0, 0, 1, 1, 1, 1, obj(1), obj(1.2), obj(2), obj(2.1), 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3
Output for 5.0.3 - 5.0.5
Warning: set_error_handler() expects the argument () to be a valid callback in /in/KUjGR on line 38 sort caused 1 error(s) in an array of 24 member(s) of which 4 are object(s). sort()-result: 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, obj(1), obj(1.2), obj(2), obj(2.1)
Output for 4.3.7 - 4.3.9, 5.0.0 - 5.0.2

Process exited with code 139.
Output for 4.3.10 - 4.4.9
Warning: set_error_handler() expects argument 1, '', to be a valid callback in /in/KUjGR on line 38 sort caused 1 error(s) in an array of 24 member(s) of which 4 are object(s). sort()-result: 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, obj(1), obj(1.2), obj(2), obj(2.1)
Output for 4.3.0 - 4.3.6
sort caused 1 error(s) in an array of 24 member(s) of which 4 are object(s). sort()-result: 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, obj(1), obj(1.2), obj(2), obj(2.1)